Trusted Sources

Google Knowledge Graph: Entity isReference Domains

Dataset: 62,202 isReference domains | entities

Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.

The Google leak in May 2024 confirmed that Google explicitly associates people with their profile pages (isReference) and articles they have written (isAuthor).

⚠️ You Can't Use Just ANY Domain!

Out of 1,738,093 domains we monitor, only 62,202 qualify as isReference domains.

3.65%

Only 3.65% of domains earn isReference status from Google. Domain selection is critical.

Key concepts:

Wikipedia is NOT Required (or even your best bet)

Wikipedia: 6 million entities
Kalicube Pro: 71 million entities
Knowledge Graph: 50 billion entities

0.012%

Wikipedia covers only 0.012% of the Knowledge Graph. If your entity isn't in that 0.012%, you need to build a Knowledge Panel with ~30 isReference url instead.

📊 Kalicube's Entity Validation Dataset

1,738,093
Domains Checked Regularly
62,202
isReference Domains
3.58% qualify
23,295,240
URLs Monitored
74,115,404
Entities Tracked

💡 Even Small Niche Domains Have isReference Authority

Examples from our dataset (December 2025):

kalicube.com 21 entities
searchengineland.com 11 entities
jasonbarnard.com 86 entities
searchenginejournal.com 270 entities
entrepreneur.com 1,292 entities
forbes.com 2,823 entities

Your niche-specific domains may have similar authority in your category.

Top 100 isReference Domains for All Entity Types

Rank Domain Entity Count
1 wikipedia.org 924,002
2 instagram.com 134,739
3 allocine.fr 101,639
4 x.com 98,934
5 linkedin.com 79,621
6 twitter.com 67,442
7 deezer.com 55,935
8 facebook.com 53,620
9 namu.wiki 40,127
10 amazon.com 40,115
11 youtube.com 38,892
12 google.com 35,110
13 legacy.com 28,930
14 britannica.com 22,183
15 reddit.com 17,945
16 dictionary.com 17,074
17 microsoft.com 14,703
18 trustpilot.com 12,644
19 fandom.com 12,377
20 wiktionary.org 12,302
21 yahoo.com 10,686
22 crunchbase.com 10,113
23 isfdb.org 9,945
24 tiktok.com 9,503
25 metacritic.com 9,189
26 rottentomatoes.com 8,760
27 letterboxd.com 8,454
28 espn.com 7,414
29 apple.com 7,284
30 github.com 7,134
31 quora.com 6,958
32 justwatch.com 6,686
33 fifa.com 6,571
34 history.com 6,031
35 uk.com 5,977
36 gutenberg.org 5,516
37 shopee.co.id 5,410
38 imdb.com 5,304
39 wikia.com 5,249
40 wikiwand.com 5,181
41 hbomax.com 5,154
42 cambridge.org 5,063
43 forbes.com 4,991
44 epicgames.com 4,922
45 time.is 4,812
46 billboard.com 4,772
47 webuy.com 4,606
48 plus.lefigaro.fr 4,526
49 premiere.fr 4,485
50 theguardian.com 4,433
51 pinterest.com 4,424
52 bbc.co.uk 4,379
53 shopee.ph 4,280
54 bing.com 4,084
55 bbc.com 3,855
56 nhl.com 3,826
57 spotify.com 3,817
58 pornhub.com 3,758
59 independent.co.uk 3,733
60 indeed.com 3,538
61 bloomberg.com 3,484
62 dictionary.net 3,457
63 ca.gov 3,367
64 google.co.il 3,357
65 nfl.com 3,350
66 genius.com 3,334
67 vocabulary.com 3,304
68 dell.com 3,225
69 google.com.br 3,145
70 ign.com 3,037
71 famousbirthdays.com 3,017
72 soundcloud.com 2,953
73 itv.com 2,936
74 eo-paris.fr 2,876
75 house.gov 2,853
76 reuters.com 2,851
77 netflix.com 2,809
78 temu.com 2,799
79 nytimes.com 2,772
80 nih.gov 2,655
81 vikidia.org 2,612
82 radiofrance.fr 2,608
83 televisionacademy.com 2,582
84 amazon.co.uk 2,539
85 thesaurus.com 2,508
86 france24.com 2,480
87 inc.com 2,447
88 hotels.com 2,421
89 chess.com 2,368
90 playstation.com 2,368
91 nintendo.com 2,326
92 the-independent.com 2,296
93 rateyourmusic.com 2,265
94 gov.uk 2,219
95 gog.com 2,187
96 deel.com 2,185
97 loc.gov 2,101
98 nasa.gov 2,102
99 office.com 2,087
100 ebay.com 2,085
101+ 62,102 additional niche-specific domains in full dataset covering 71,963,880 additional entities

Why This Data Matters

Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.

Entity Validation at Scale

Google's Knowledge Graph requires consistent entity recognition across validated domains.

  • Only 3.65% of domains (62202 out of 1738093) qualify as isReference
  • Brands typically need ~30 entity-validated url for a stable Knowledge Panel
  • Each niche has unique entity authority patterns
  • Generic "authority lists" miss 95%+ of niche-specific opportunities

⚠️ This Free List is Intentionally Limited

The top 100 domains shown above are dominated by massive generalist sites. For 99% of brands, the real opportunities lie in the niche-specific domains that only appear in our full platform dataset.

Recommended Reading:

🔐 Find YOUR Niche-Specific isReference Domains

We monitor 23M+ URLs across 1.7M domains to identify the exclusive 3.65% that qualify as isReference domains for 72M+ entities. The Kalicube Pro platform maps your competitive landscape and identifies your niche-specific opportunities in 15 minutes.

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